Export DataGridView to Excel using NetOfficeFW

[emad981]

I use the following code to export my DataGridView into excel using .Net Framework 4.8 dev,

           string time = DateTime.Now.ToString("dd-MM-yyyy");
            Excel.Application app = new Excel.Application();
            Excel.Workbook workbook = app.Workbooks.Add(Type.Missing);
            //Make Worksheet Name
            Excel.Worksheet worksheet = null;
            //worksheet = workbook.ActiveSheet;
           // worksheet = workbook.Sheets["Sheet1"];
            worksheet.Name = "MySheetName-" + time;
            worksheet.Range("A1", "M1").Interior.Color = XlRgbColor.rgbGrey;
            worksheet.Range("A1", "M1").Font.Color = XlRgbColor.rgbWhite;

            //Set Colum width
            app.Columns.AutoFit();
            app.Columns.ColumnWidth = 14;
            app.Columns[1].Hidden = true;
            app.Columns[2].Hidden = true;
            app.Columns[3].ColumnWidth = 13;
            app.Columns[4].ColumnWidth = 15;
            app.Columns[5].ColumnWidth = 9;
            app.Columns[6].ColumnWidth = 9;
            app.Columns[7].ColumnWidth = 9;
            app.Columns[8].ColumnWidth = 9;
            app.Columns[9].ColumnWidth = 9;
            app.Columns[10].ColumnWidth = 9;
            app.Columns[11].ColumnWidth = 9;
            app.Columns[12].ColumnWidth = 9;
            app.Columns[13].ColumnWidth = 9;
            app.Columns[14].ColumnWidth = 25;

            ////TextAlignment
            app.Columns[3].HorizontalAlignment = XlHAlign.xlHAlignLeft;
            app.Columns[4].HorizontalAlignment = XlHAlign.xlHAlignCenter;
            app.Columns[5].HorizontalAlignment = XlHAlign.xlHAlignCenter;
            app.Columns[6].HorizontalAlignment = XlHAlign.xlHAlignCenter;
            app.Columns[7].HorizontalAlignment = XlHAlign.xlHAlignCenter;
            app.Columns[8].HorizontalAlignment = XlHAlign.xlHAlignCenter;
            app.Columns[9].HorizontalAlignment = XlHAlign.xlHAlignCenter;
            app.Columns[10].HorizontalAlignment = XlHAlign.xlHAlignCenter;
            app.Columns[11].HorizontalAlignment = XlHAlign.xlHAlignCenter;
            app.Columns[12].HorizontalAlignment = XlHAlign.xlHAlignCenter;
            app.Columns[13].HorizontalAlignment = XlHAlign.xlHAlignCenter;

            //Set Header & Footer
            ckconnection.getGeneralSetting();
            worksheet.PageSetup.LeftHeader = "&\"Calibri\"&14&K8B2252" + DEVELOPER NAME;
            worksheet.PageSetup.CenterHeader = "&\"Calibri\"&14&K8B2252 REPORT NAME";
            worksheet.PageSetup.RightHeader = "&\"Calibri\"&14&K8B2252" + company_name;
            worksheet.PageSetup.CenterFooter = "&[Page] of &[Pages]";
            worksheet.PageSetup.RightFooter = time;
            //Page size and layout
            worksheet.PageSetup.Orientation = XlPageOrientation.xlLandscape;
            worksheet.PageSetup.PaperSize = XlPaperSize.xlPaperA4;

            // Narrow Margins
            worksheet.PageSetup.LeftMargin = app.InchesToPoints(0.25);
            worksheet.PageSetup.RightMargin = app.InchesToPoints(0.25);
            worksheet.PageSetup.TopMargin = app.InchesToPoints(0.75);
            worksheet.PageSetup.BottomMargin = app.InchesToPoints(0.75);
            worksheet.PageSetup.HeaderMargin = app.InchesToPoints(0.3);
            worksheet.PageSetup.FooterMargin = app.InchesToPoints(0.3);

            for (int i = 1; i < gridView.Columns.Count + 1; i++)
            {
                Excel.Range xlRange = (Excel.Range)app.Cells[1, i];
                xlRange.Font.Bold = -1;
                xlRange.Borders.LineStyle = XlLineStyle.xlContinuous;
                xlRange.Borders.Weight = 1d;
                xlRange.HorizontalAlignment = XlHAlign.xlHAlignCenter;
                app.Cells[1, i] = gridView.Columns[i - 1].HeaderText;
            }
            for (int i = 0; i < gridView.Rows.Count; i++)
            {
                for (int j = 0; j < gridView.Columns.Count; j++)
                {
                    Excel.Range xlRange = (Excel.Range)app.Cells[i + 2, j + 1];
                    xlRange.Borders.LineStyle = XlLineStyle.xlContinuous;
                    xlRange.Borders.Weight = 1d;
                    app.Cells[i + 2, j + 1] = gridView.Rows[i].Cells[j].Value.ToString();
                }
            }
            var saveFileDialoge = new SaveFileDialog();
            saveFileDialoge.FileName = "MySheetName-" + time + ".xlsx";
            if (saveFileDialoge.ShowDialog() == DialogResult.OK)
            {
                app.ActiveWorkbook.SaveAs(saveFileDialoge.FileName);
            }
            app.Quit();

unfortunately, there is a highlighted error in the following two lines: app.Cells[1, i] = gridView.Columns[i - 1].HeaderText; app.Cells[i + 2, j + 1] = gridView.Rows[i].Cells[j].Value.ToString();

The error text is:

can't convert string to NetOffice.Excel.Api.Range

[emad981]

@jozefizso can you help me in this issue?? thanks

[emad981]

Thanks anyway, I found great support from ClosedXML and everything goes smoothlly with them, consider this ticket as closed.